Background: Coronary artery anomalies are known to be associated with congenital heart defects, myocardial ischemia and reduced life expectancy. The sound knowledge ofcoronary artery anatomy is necessary for proper management of patients undergoing evaluation for percutaneous coronary intervention, coronary artery surgery or prosthetic valve replacement. Material and Methods: The presented study is done on 76 adult heart specimens obtained from routine dissection conducted for undergraduate students in the Department of Anatomy at Patna Medical College and Hospital Patna, Bihar. and also at other near by medical colleges of Bihar. The data obtained is tabulated and analyzed stastically. Conclusion: study is done to know the normal and variant anatomy of Bihar region to provide vital inputs for making a correct diagnosis and planning treatment procedures of coronary angiography, stenting procedures and surgical myocardial revascularization.